Compensator for signals



(No Model.)

S. H. STUPAKOPP. ,G O MPBNSATOR FOR SIGNALS.

2 sheets -sheet I. I

Patented Nov; 15', 1892.

(N0 Mqdel.) 2 Sheets-811166122.

SLHJST UP AKOFPQ OOMBBNSATOR FOB SIGNALS. No. 486,303. Patented Nov. 15,1892.

UNETE STATES PATENT FEIQE.

SIMON H. STUPAKOFF, OF PITTSBURG, ASSIGNOR TO THE UNION SWITCH ANDSIGNAL COMPANY, OF SWISSVALE, PENNSYLVANIA.

COMPENSATOR FO'R SIGNALS.

SPECIFICATION forming part of Letters Patent No. 486,303, dated November15, 1892.

Application filed August 1, 1892. Serial No. 441.832. (No model.) 7

To all whom it may concern.-

Be it known that I, SIMON I-I. STUPAKOFF, a citizen of the UnitedStates, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented or discovered certain new and usefulImprovements in Compensators for Signals, of which improvements thefollowing is a specification.

The invention described herein relates to certain improvements inwire-compensators, which form the subject-matter of Letters Patent Nos.470,148, 479,230, and 479,380, granted March 1 and July 19, 1892,respectively.

In general terms the invention consists in the construction andcombination substantially as hereinafter more fully described andclaimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is a sectional elevation of my improved compensator. Fig. 2 isa sectional plan of the same. Fig. 3 is a vertical section, the plane ofsection being indicated by the line a; 00, Fig. 1. Fig. 4 is an endelevation. Figs. 5 and 7 are views in elevation of modified forms of thecompensator, and Fig. 6 is a plan view of the construction shown in Fig.5.

In the practice of myinvention the shell or case 1 is secured to thecross-ties of a track or any other suitable foundation. In the sides ofthe shell or in a plate lining the same are formed the horizontal slots2 and 3 and the vertical slot 4, which form bearings for the ends of theshafts 5, 6, and 7. It is preferred to mount groovedantifriction-rollers 8 on the ends of the shafts, said rollers fittingin the slots, and thereby facilitating the movement of the shafts alongthe slots, as will be hereinafter described. On the shaft 5 is keyed asprocket-wheel 9, over which passes a chain 10, whose ends are connectedto wires leading to the operating-leverv or to the signal to be operatedthereby. On opposite sides of the wheel 9 similar wheels 11 are keyed tothe same shaft,and around these Wheels are passed chains 12, which alsopass around sprocketwheels 13 on the adjusting and transmitting shaft 6.Intermediate of the wheels 13 is keyed a similar wheel 14, and aroundthis wheel and a sprocket-wheel 15 on the shaft 7 is passed a chain 16.Chains 17, whose ends are connected to wires leading to the signal orthe operating lever, are. passed around the sprocket-wheels 18, keyed tothe shaft on 0pposite sides of the wheel 15.

In order to maintain a constant tension on the wires leading to thesignal-operating lever and signal the inner end of an arm 19 isconnected by links 20 to the shaft 6, the opposite end of the arm beingsecured to a shaft 21, mounted in the sides of the shell 1, and on theouter ends of the shaft are secured arms 22, having weights 23adjustably fastened thereon. This arrangement of shaft and arms forms aweighted lever normally operating to raise the shaft 6 in the slot 4,and thereby, through the medium of the chains 12 and 16 or the links 24,connecting the shaft 6 withthe shafts 5 and 7 to shift the latterinwardly along the horizontal slots 2 and 3 and maintain a constanttension on the wire connections, while permitting them to expand andcontract under atmospheric changes.

It will be observed that by arranging the sprocket-wheels on theirrespective shafts in the, manner described and shown the shafts will bemaintained in practical parallelism with each other whatever pull orstrain may be applied to wheels 9 and 18.

As shown in Fig. 5, a second transmitting and adjusting shaft 6 maybearranged below the shaft 6, its antifriction-rollers 8 being arranged ina prolongation of the vertical slot and its ends connected to the endsof the shafts 5 and 7 by links 24. In this form of compensator rotarymotion is transmitted from the lever-operated shaft to thesignaloperating shaft by chains 25, passing around sprocket-Wheels 26 oneach of the shafts 5, 6, 6 and 7, and between the sprocket-wheels on theshafts 5 and 7 are keyed the sprocketwheels 9 and 18, respectively, onlyone wheel 18 being necessary on the shaft 7 in this construction.

In Fig. 7 is shown a form of compensator wherein the adjusting andtransmitting shaft 6 is arranged below the shafts 5 and 7. In this formof compensator the weighted lever is connected to the shaft 6 at a pointintermediate of its fulcrum and the weight; but, if desired, theweighted lever may be dispensed with and the sprocket-wheels on theshaft 6 made sufficiently heavy to eifect the adj ustment of the shafts5 and 7. It will be readily understood that springs may be employed inlieu of weights, one arrangement of such springs being shown in Fig. 5,wherein springs 27 are shown connecting the shafts 5 and 7.

- The slots 2 and 3 may, if desired, be slightly inclined, asrepresented by dotted lines in Figs. 1 and 7.

I claim herein as my invention--- 1. In a compensator for signals, thecombination of a movable adjusting and transmitting shaft, two shaftsmovable laterally by the adjusting-shaft and connected, respectively,with an operating-lever and with a signal and means for transmittingrotary movement from the lever -operated shaft to the transmitting-shaft and from the latter to the signaloperating shaft,substantially as set forth.

2. In a compensator, the combination of two laterally movable androtatable shafts, sprocket-wheels keyed to said shafts, chains passingaround said wheels and connected, respectively, to an operating-leverand to a signal, an adjusting and transmitting shaft,

chains passing around sprocket-wheels on the adjusting and transmittingshaft and on the laterally movable shafts, and means for shifting theadjusting-shaft, substantially as set orth.

3. In a compensator for signals, the combination of two laterallymovable and rotatable shafts having sprocket-Wheels keyed thereto,chains passing around said Wheels and connected, respectively, to anoperating-lever and to a signal, an adjusting and transmitting shaft,links connecting the latter with the lever-operated and signal-operatingshafts, chains passing around sprocket-wheels on the transmitting-shaftand on the lever-operated and signal-operating shafts, and means forshifting the adjusting-shaft, substantially as set forth.

In testimony whereof I have hereunto set my hand.

SIMON H. STUPAKOFF.

Witnesses:

DARWIN S. WoLcoT'r, R. H. WHIT'rLEsEY.

